Manual Reference Pages - CREATE_BMP_FOR_STRIPLINE_COUPLER (1)
create_bmp_for_stripline_coupler - bitmap generator for coupler with thin striplines between two infinitely wide groundplanes (part of atlc)
create_bmp_for_stripline_coupler [-C] [-b bitmapsize] [-v] H w s Er outputfile
This man page is not a complete set of documentation - the complexity of the atlc project makes man pages not an ideal way to document it, although out of completeness, man pages are produced.
The best documentation that was current at the time the version was produced should be found on your
hard drive, usually at
although it might be elsewhere if
your system administrator chose to install the package elsewhere. Sometimes, errors are corrected
in the documentation and placed at http://atlc.sourceforge.net/ before a new release of atlc is
released. Please, if you notice a problem with the documentation - even spelling errors and typos,
please let me know.
create_bmp_for_stripline_coupler is a pre-processor for atlc, the finite difference
program that is used to calculate the
properties of a two and three conductor electrical transmission lines of arbitrary
cross section. The program create_bmp_for_stripline_coupler is used as a fast way of
generating bitmaps (there is no need to use a graphics program), for a
pair of 1 pixel thick conductors of width w, spaced a distance s apart,
inside a pair of
groundplanes of separation H. This has an exact analytical
answer, when the inner is infinitely thin and the overall width W is infinitely
wide. This theoretical impedance is calculated and printed to stderr if
the -v option is given on create_bmp_for_stripline_couplers command line.
| | |
| Er | |
| | |
| ----------- ----------- | H
| <----w----><--s--><----w----> | |
| | |
| | |
| | |
The overall width W is calculated internally to be large enough that
making it any larger will have negligible effect on the results.
The dielectric is assumed that of vacuum.
The bitmaps produced by create_bmp_for_stripline_coupler are 24-bit bit colour bitmaps, as are required by atlc.
Print the full copyright information and exit.
is used to set the size of the bitmap, and so the accuracy to which atlc
is able to calculate the couplers properties. The default
value for bitmapsize is normally 18 although this can be set at
compile time. (see DEFAULT_COUPLER_BITMAP_SIZE in definitions.h). The value can be set anywhere from 6 to 28. The size of bitmap produced will be
between 2^(bitmapsize-1) and 2^(bitmapsize+1), so if its set to 28 the
bitmap could be as big as 512 Mb, which would take an eternity to
Print some extra data to stdout on the theoretical impedance of the
structure. This is useful to compare with the numerical result from
In the first example, a standard coupler is created, where the
eg1. create_bmp_for_stripline_coupler 1.23 0.7 1.2 1.0 coupler.bmp
eg2. create_bmp_for_stripline_coupler -b 8 1.23 0.7 3.3 small.bmp
eg3. create_bmp_for_stripline_coupler -v 12 1.23 0.7 4.8 theory.bmp
http://atlc.sourceforge.net - Home page
http://sourceforge.net/projects/atlc - Download area
atlc-X.Y.Z/docs/html-docs/index.html - HTML docs
atlc-X.Y.Z/docs/qex-december-1996/atlc.pdf - theory paper
atlc-X.Y.Z/examples - examples
Dr. David Kirkby PhD, drkirkby at ntlworld.com
Copyright (c) 2002 Dr. David Kirkby.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License (in
the file COPYING) along with this program. You may get a full copy of it
by running the program with the -C option. Otherwise you can write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.
|Dr. David Kirkby ||CREATE_BMP_FOR_STRIPLINE_COUPLER (1) ||atlc-.4.6.0 6th Dec 2003 |
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